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An emergency disconnection technology enabling safe and intelligent access to sustainable deepwater subsea oil and gas assets

紧急断开技术可实现安全、智能地访问可持续深水海底石油和天然气资产

基本信息

批准号：
104394
负责人：
金额：
$ 39.8万
依托单位：
SECC OIL AND GAS LIMITED
依托单位国家：
英国
项目类别：
Collaborative R&D
财政年份：
2018
资助国家：
英国
起止时间：
2018 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=104394
关键词：
emergency disconnection technology enabling safe

项目摘要

Optimised extraction of subsea oil/gas underpins a smooth transition to a largely-renewable energy balance by 2060, with assets increasingly located in complex deepwater/ultra-deepwater, for which operation at 15kpsi system pressures is becoming essential for sustainable extraction efficiency and well integrity.However, the challenge of accessing these assets in a commercially/risk-acceptable way is unmet, restricting vital subsea-operations over the full-lifecycle to less than 5% of those required. New rigless/riserless methods to intelligently access deep-water assets from subsea-manifolds/trees, using small dynamically-positioned vessels and flexible open-water downlines, can therefore be transformational, but rely on failsafe Emergency-Quick-Disconnection (EQD) technology to prevent damage to the downline, vessel or well-integrity in the event of dynamic-positioning-failure/drift-off. However, this technology does not exist at 15kpsi, rendering these operations in deep/ultra-deepwater too high-risk.In response, Secc are developing game-changing mechanically pressure-balanced venting architectures, to realise reconnectable weak-links for failsafe EQD. First-generation devices have been 3rd-party-validated for 10kpsi operations, and building on these concepts, Secc now targets the technological step-change required to realise a 15kpsi EQD-connector. R&D focusses on a fundamental redesign/development of the pressure-retaining architecture, seal geometry and actuation, supporting new industry standards.

海底石油/天然气的优化开采是到2060年平稳过渡到大规模可再生能源平衡的基础，资产越来越多地位于复杂的深水/超深水，在15 kpsi系统压力下操作对于可持续的开采效率和油井完整性至关重要。然而，以商业/风险可接受的方式获取这些资产的挑战尚未得到满足，将整个生命周期内的重要水下作业限制在所需作业的5%以下。因此，使用小型动态定位船舶和灵活的开放水域下行管线从水下管汇/采油树智能进入深水资产的新无钻机/无隔水管方法可以是变革性的，但依赖于故障安全紧急快速断开（EQD）技术，以防止在动态定位故障/漂移的情况下损坏下行管线、船舶或井的完整性。然而，在15 kpsi时不存在这种技术，这使得在深水/超深水中的这些操作风险太高。作为回应，Secc正在开发改变游戏规则的机械压力平衡排气架构，以实现故障安全EQD的可重连薄弱环节。第一代设备已经过10 kpsi操作的第三方验证，基于这些概念，Secc现在的目标是实现15 kpsi EQD连接器所需的技术步骤变化。研发重点是对保压结构、密封几何形状和驱动进行根本性的重新设计/开发，以支持新的行业标准。